US20120238650A1 - Plant and method for the recycling of plastics, preferably pet - Google Patents
Plant and method for the recycling of plastics, preferably pet Download PDFInfo
- Publication number
- US20120238650A1 US20120238650A1 US13/419,611 US201213419611A US2012238650A1 US 20120238650 A1 US20120238650 A1 US 20120238650A1 US 201213419611 A US201213419611 A US 201213419611A US 2012238650 A1 US2012238650 A1 US 2012238650A1
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- United States
- Prior art keywords
- plant
- production
- plant according
- recycling
- components
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/0026—Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
- B29B17/0047—Compacting complete waste articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B2017/001—Pretreating the materials before recovery
- B29B2017/0015—Washing, rinsing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/26—Component parts, details or accessories; Auxiliary operations for discharging, e.g. doors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1769—Handling of moulded articles or runners, e.g. sorting, stacking, grinding of runners
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
- B29K2067/003—PET, i.e. poylethylene terephthalate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Definitions
- the disclosure relates to a plant and a method for the recycling of plastics, preferably PET.
- PET is used on a large scale for containers in the food industry, especially for beverage bottles. In consequence, large quantities of spent waste containers are produced, which can no longer be returned to the filling process.
- Methods and plants for recycling these waste containers and process them to obtain again a PET source material suited for use with food, for the production of new containers are already known.
- Such a recycling plant may be provided directly upstream of a production line for the production of new PET containers, where the recycled product coming from the recycling plant can directly be introduced, for example, into an injection molding machine for the production of preforms as starting product for new PET bottles.
- the recycling plant may be designed for the production of so-called flakes or the production of pellets.
- flakes are the products from a grinder, which have been cleaned, sorted and decontaminated for use in foodstuffs.
- Pellets are products from an extruder, where they were homogenized by thermal influence. Both production methods have advantages and disadvantages.
- the advantages of the flake process lie, for example, in a small energy input, in the fact that no acetaldehyde is formed, that the intrinsic viscosity is not reduced, that possibly contained foreign plastics cannot coalesce, and that drying is possible at low temperatures.
- Disadvantages of the flake process are that flakes are less suitable for being admixed to newly produced PET (virgin PET) and that foreign plastics can oxidize.
- the advantages of the pellet process lie in a simple and unproblematic admixture to virgin material, and in the use of a melt filter filtration technique for removing finest particles.
- the disadvantages of the pellet process lie in a considerably greater energy input, in the risk that acetaldehyde is formed, and that foreign plastics may coalesce, so that no homogenous PET is obtained.
- One aspect of the disclosure is obtaining more flexibility for the recycling of PET.
- the embodiment according to the disclosure allows the user to switch from one process to the other, according to requirements and preconditions.
- both processes are not strictly carried out in parallel, but are interconnected with each other, and a changeover from one process line to another process line can be realized by material flow switches.
- the interconnection is preferably accomplished to allow the use of as many of the present plant components as possible in both process lines.
- the interconnection may also be realized with bypass transport routes, allowing that specific plant components in the different process lines are started in different orders, with the controller being configured in such a way that shared plant components can be operated subject to different programs and with different parameters, if necessary.
- a shared plant component can be, for example, a vacuum reactor, in which a material flow switch can be provided particularly easily, in which, for example, two alternately operable outlet paths are provided.
- FIG. 1 shows a block diagram of the plant according to the disclosure for carrying out the method according to the disclosure
- FIG. 2 shows a schematic perspective view of a material flow switch associated with a reactor.
- FIG. 1 shows a block diagram of a plant 1 according to the disclosure for the recycling of PET, to obtain a recycled product which is suited for the production of containers usable in the food industry.
- the disclosure can also be used for those plants that provide recycled PET for a non-sterile application, or it may be employed for the recycling of other plastics.
- Plant 1 according to the disclosure comprises a conventional grinder, not illustrated in FIG. 1 , in which PET products are ground to material shred or so-called flakes.
- a washing plant for removing label residues or dirt is not shown in FIG. 1 either.
- Plant 1 according to FIG. 1 first comprises, for example, a sifter 2 of the washing device, by means of which visible impurities are removed.
- a switching device is located, e.g. in the form of a first material flow switch 3 conducting the material flow into a first process line A, which is shown by a dashed line, and into a second process line B, which is shown by a continuous line.
- the first process line A comprises the plant components for the production of a first recycling product, preferably pellets.
- the plant components of process line A which are passed through in the order specified below, are a sifter 4 for fines, a sieve 5 for removing the fines, a color sorter 6 for sorting out discolored or false color flakes, and a silo 7 for collecting the cleaned and washed flakes, followed, for example via another material flow switch 18 , by a decontamination stage 8 .
- the decontamination stage 8 is formed of a first heating screw 9 , a second heating screw 10 and a vacuum reactor 11 . The flakes are heated in the heating screws. Next, residual contents are extracted in the vacuum reactor 11 .
- the vacuum reactor 11 is associated with a switching device, e.g. in the form of another material switch 12 explained in more detail below, leading into an extruder 13 for the production of pellets.
- a switching device e.g. in the form of another material switch 12 explained in more detail below
- the flakes are plasticized by the supply of heat and brought into a shape from which pellets may be formed.
- These pellets subsequently run through a cooler 14 , and are transported by another material flow switch 15 either into packaging containers 16 , or as bulk cargo into transport containers 17 , or are directly introduced into a further processing machine (not illustrated in FIG. 1 ), e.g. an injection molding machine for the production of preforms for beverage bottles.
- the second process line B comprises the plant components for the production of a second recycling product, preferably flakes, and employs the plurality of the plant components of process line A, however, with some of the plant components being run through in a different order.
- the non-illustrated grinder and the sifter/washing device 2 are run through in the same order as in process line A.
- the material flow switch 3 is set in such a way that the flakes leaving the sifter 2 are immediately transported into the silo 7 , and from there into the decontamination device 8 comprising the first heating screw 9 , the second heating screw 10 and the vacuum reactor 11 .
- the decontamination process is carried out analogously to the pellet production process in process line A.
- the material flow switch 12 is set to make the flakes run through the sifter 4 , the sieve 5 , and the color sorter 6 so that flakes that were possibly discolored during the heating can be sorted out. From the color sorter 6 the flakes are transported via a bypass route 12 a , bypassing extruder 13 and cooler 14 , directly to the material switch 15 , which distributes the flakes to the containers 16 , 17 or to the injection molding machine.
- FIG. 2 schematically shows the material switch 12 associated with the vacuum reactor 11 .
- the vacuum container 11 comprises a vacuum bottom 11 a , which has two outlet openings 18 and 19 spaced away from each other. Both outlets 18 , 19 are designed as bulk material feeders and can be locked, for example, by a slide or a blind cover accessible through an access opening.
- the outlet 18 leads into process line A, i.e. to the extruder 13 , for example through a conduit 20 .
- the outlet 19 leads into process line B for flakes, and is connected, e.g. by a chute 21 , to the sifter 4 for fines.
- the controller of the plant 1 is configured such that the user merely has to preselect a specific process line A or B so as to start the desired process. Where necessary, a manual switching may be required, e.g. at material flow switch 12 , for opening and closing special access openings and for inserting and removing blind covers. Moreover, the controller ensures that plant components such as the sifter 4 , the sieve 5 , the color sorter 6 and the decontamination device 8 are operated in accordance with the production process for the first recycling product (pellets) or the second recycling product (flakes) with different parameters, adapted to the selected process. Such parameters are, for example, the conveying speed in a continuous or discontinuous operation, holding times, temperatures such as drying temperatures or temperatures of conveyor members, parameters of sorters or the like.
- the plant is operated in the flake process and is to be switched to the pellet process. The following operations take place:
- the vacuum reactor 11 no longer delivers flakes and breaks the vacuum.
- the sifter/washing device 2 interrupts the transport to the decontamination device 8 .
- the material flow switch 12 is switched over. To this end, the access opening at the pellet process outlet has to be opened and the blind cover for the material flow has to be removed. After that, process line A is open, and this access opening is closed again. Next, the access opening at the flake process outlet is opened, and the outlet is closed with the blind cover. Thus, product line B is locked. The access opening of the flake process is now closed again.
- the sifter 4 for fines, the sieve 5 for fines and the color sorter 6 continue to operate until they are empty.
- the controller is being signaled as soon as all manual alterations are concluded.
- the sifter/washing device continues the transport to the decontamination module 8 .
- the controller detects which one of the production processes is in operation, and it is capable without any further intervention to automatically switch the relevant parameter set required therefor and change over the switch position for the different product lines.
- the plant is operated in the pellet production process and is to be switched to the flake production process. The following operations are necessary:
- the user selects the desired production process (flake process).
- the vacuum reactor 11 no longer delivers pellets and breaks the vacuum.
- the sifter/washing device interrupts the transport to the decontamination module 8 .
- the sifter 4 for fines, the sieve 5 for fines and the color sorter 6 continue to operate until they are empty.
- the controller is being signaled as soon as all manual alterations are concluded.
- the sifter/washing device continues the transport to the decontamination module 8 .
- the controller detects the currently used production process, and it is capable without any further intervention to automatically switch the relevant parameter set and change over the switch position for the different product lines A, B.
- the product lines may, on the one hand, be provided with different plant components according to requirements and, on the other hand, also be designed for the production of other recycling products. Further, the switching can be accomplished fully automatically by the process controller, also in the region of the material switch at the vacuum reactor, with two controllable outlets of the vacuum reactor being optionally provided.
Abstract
Description
- The present application claims the benefit of priority of German Application No. 102011005568.1, filed Mar. 15, 2011. The entire text of the priority application is incorporated herein by reference in its entirety.
- The disclosure relates to a plant and a method for the recycling of plastics, preferably PET.
- PET is used on a large scale for containers in the food industry, especially for beverage bottles. In consequence, large quantities of spent waste containers are produced, which can no longer be returned to the filling process. Methods and plants for recycling these waste containers and process them to obtain again a PET source material suited for use with food, for the production of new containers are already known. Such a recycling plant may be provided directly upstream of a production line for the production of new PET containers, where the recycled product coming from the recycling plant can directly be introduced, for example, into an injection molding machine for the production of preforms as starting product for new PET bottles.
- There are recycling plants for PET, which are each designed for a specific type of recycling product. For example, the recycling plant may be designed for the production of so-called flakes or the production of pellets. In principle, flakes are the products from a grinder, which have been cleaned, sorted and decontaminated for use in foodstuffs. Pellets are products from an extruder, where they were homogenized by thermal influence. Both production methods have advantages and disadvantages. The advantages of the flake process lie, for example, in a small energy input, in the fact that no acetaldehyde is formed, that the intrinsic viscosity is not reduced, that possibly contained foreign plastics cannot coalesce, and that drying is possible at low temperatures. Disadvantages of the flake process are that flakes are less suitable for being admixed to newly produced PET (virgin PET) and that foreign plastics can oxidize. The advantages of the pellet process lie in a simple and unproblematic admixture to virgin material, and in the use of a melt filter filtration technique for removing finest particles. The disadvantages of the pellet process lie in a considerably greater energy input, in the risk that acetaldehyde is formed, and that foreign plastics may coalesce, so that no homogenous PET is obtained.
- Due to this fact both processes are in use and are employed, depending on the interests of the manufacturer. However, once a recycling plant is installed the user is committed to this process, at least for the service life of the plant.
- One aspect of the disclosure is obtaining more flexibility for the recycling of PET.
- The embodiment according to the disclosure allows the user to switch from one process to the other, according to requirements and preconditions.
- Preferably, both processes are not strictly carried out in parallel, but are interconnected with each other, and a changeover from one process line to another process line can be realized by material flow switches. The interconnection is preferably accomplished to allow the use of as many of the present plant components as possible in both process lines. The interconnection may also be realized with bypass transport routes, allowing that specific plant components in the different process lines are started in different orders, with the controller being configured in such a way that shared plant components can be operated subject to different programs and with different parameters, if necessary.
- A shared plant component can be, for example, a vacuum reactor, in which a material flow switch can be provided particularly easily, in which, for example, two alternately operable outlet paths are provided.
- An embodiment of the disclosure will be explained in more detail below by means of the drawings:
-
FIG. 1 shows a block diagram of the plant according to the disclosure for carrying out the method according to the disclosure, and -
FIG. 2 shows a schematic perspective view of a material flow switch associated with a reactor. -
FIG. 1 shows a block diagram of a plant 1 according to the disclosure for the recycling of PET, to obtain a recycled product which is suited for the production of containers usable in the food industry. However, the disclosure can also be used for those plants that provide recycled PET for a non-sterile application, or it may be employed for the recycling of other plastics. - Plant 1 according to the disclosure comprises a conventional grinder, not illustrated in
FIG. 1 , in which PET products are ground to material shred or so-called flakes. A washing plant for removing label residues or dirt is not shown inFIG. 1 either. Plant 1 according toFIG. 1 first comprises, for example, asifter 2 of the washing device, by means of which visible impurities are removed. At the outlet of the sifter 2 a switching device is located, e.g. in the form of a first material flow switch 3 conducting the material flow into a first process line A, which is shown by a dashed line, and into a second process line B, which is shown by a continuous line. In the exemplary embodiment shown, the first process line A comprises the plant components for the production of a first recycling product, preferably pellets. The plant components of process line A, which are passed through in the order specified below, are asifter 4 for fines, asieve 5 for removing the fines, acolor sorter 6 for sorting out discolored or false color flakes, and a silo 7 for collecting the cleaned and washed flakes, followed, for example via anothermaterial flow switch 18, by adecontamination stage 8. In the exemplary embodiment shown, thedecontamination stage 8 is formed of afirst heating screw 9, asecond heating screw 10 and avacuum reactor 11. The flakes are heated in the heating screws. Next, residual contents are extracted in thevacuum reactor 11. - The
vacuum reactor 11 is associated with a switching device, e.g. in the form of anothermaterial switch 12 explained in more detail below, leading into anextruder 13 for the production of pellets. In theextruder 13 the flakes are plasticized by the supply of heat and brought into a shape from which pellets may be formed. These pellets subsequently run through acooler 14, and are transported by anothermaterial flow switch 15 either intopackaging containers 16, or as bulk cargo intotransport containers 17, or are directly introduced into a further processing machine (not illustrated inFIG. 1 ), e.g. an injection molding machine for the production of preforms for beverage bottles. - The second process line B comprises the plant components for the production of a second recycling product, preferably flakes, and employs the plurality of the plant components of process line A, however, with some of the plant components being run through in a different order. The non-illustrated grinder and the sifter/
washing device 2 are run through in the same order as in process line A. The material flow switch 3 is set in such a way that the flakes leaving thesifter 2 are immediately transported into the silo 7, and from there into thedecontamination device 8 comprising thefirst heating screw 9, thesecond heating screw 10 and thevacuum reactor 11. The decontamination process is carried out analogously to the pellet production process in process line A. Then, thematerial flow switch 12 is set to make the flakes run through thesifter 4, thesieve 5, and thecolor sorter 6 so that flakes that were possibly discolored during the heating can be sorted out. From thecolor sorter 6 the flakes are transported via abypass route 12 a, bypassingextruder 13 andcooler 14, directly to thematerial switch 15, which distributes the flakes to thecontainers -
FIG. 2 schematically shows thematerial switch 12 associated with thevacuum reactor 11. Thevacuum container 11 comprises avacuum bottom 11 a, which has twooutlet openings outlets outlet 18 leads into process line A, i.e. to theextruder 13, for example through aconduit 20. Theoutlet 19 leads into process line B for flakes, and is connected, e.g. by achute 21, to thesifter 4 for fines. - The controller of the plant 1 is configured such that the user merely has to preselect a specific process line A or B so as to start the desired process. Where necessary, a manual switching may be required, e.g. at
material flow switch 12, for opening and closing special access openings and for inserting and removing blind covers. Moreover, the controller ensures that plant components such as thesifter 4, thesieve 5, thecolor sorter 6 and thedecontamination device 8 are operated in accordance with the production process for the first recycling product (pellets) or the second recycling product (flakes) with different parameters, adapted to the selected process. Such parameters are, for example, the conveying speed in a continuous or discontinuous operation, holding times, temperatures such as drying temperatures or temperatures of conveyor members, parameters of sorters or the like. - The switching operations will be explained in more detail below by means of examples.
- The plant is operated in the flake process and is to be switched to the pellet process. The following operations take place:
- 1. The user selects the switching to the pellet process.
- 2. The
vacuum reactor 11 no longer delivers flakes and breaks the vacuum. - 3. The sifter/
washing device 2 interrupts the transport to thedecontamination device 8. - 4. After the vacuum in the
vacuum reactor 11 was broken (which is signaled to the user), thematerial flow switch 12 is switched over. To this end, the access opening at the pellet process outlet has to be opened and the blind cover for the material flow has to be removed. After that, process line A is open, and this access opening is closed again. Next, the access opening at the flake process outlet is opened, and the outlet is closed with the blind cover. Thus, product line B is locked. The access opening of the flake process is now closed again. - 5. The
sifter 4 for fines, thesieve 5 for fines and thecolor sorter 6 continue to operate until they are empty. - 6. The
other material switches 3 and 15 are switched over. - 7. After the
sifter 4, thesieve 5 and thecolor sorter 6 have been emptied, the parameter sets for the operating state of the first process line A for pellets are automatically loaded into the plant components used for both product lines. - 8. The controller is being signaled as soon as all manual alterations are concluded.
- 9. The sifter/washing device continues the transport to the
decontamination module 8. - 10. The production process for pellets is now initiated, and the alteration is concluded.
- The controller detects which one of the production processes is in operation, and it is capable without any further intervention to automatically switch the relevant parameter set required therefor and change over the switch position for the different product lines.
- The plant is operated in the pellet production process and is to be switched to the flake production process. The following operations are necessary:
- 1. The user selects the desired production process (flake process).
- 2. The
vacuum reactor 11 no longer delivers pellets and breaks the vacuum. - 3. The sifter/washing device interrupts the transport to the
decontamination module 8. - 4. After the vacuum in the
vacuum reactor 11 was broken (which is signaled to the user), the vacuum bottom 11 is converted. To this end, the access opening at the flake process outlet has to be opened and the blind cover for the material flow has to be removed. After that, product line B is open, and this access opening is closed again. Next, the access opening at the pellet process outlet is opened, and the outlet is closed with the blind cover. Thus, process line A is locked. The access opening of the pellet process is now closed again. - 5. The
sifter 4 for fines, thesieve 5 for fines and thecolor sorter 6 continue to operate until they are empty. - 6. The material switches 3 and 15 are switched over.
- 7. After the
sifter 4, thesieve 5 and thecolor sorter 6 have been emptied, the parameter sets for the production process for flakes are automatically loaded into the plant components used for both product lines A and B. - 8. The controller is being signaled as soon as all manual alterations are concluded.
- 9. The sifter/washing device continues the transport to the
decontamination module 8. - 10. The production process for flakes is now initiated, and the alteration is concluded.
- The controller detects the currently used production process, and it is capable without any further intervention to automatically switch the relevant parameter set and change over the switch position for the different product lines A, B.
- According to a modification of the exemplary embodiments described and illustrated above, the product lines may, on the one hand, be provided with different plant components according to requirements and, on the other hand, also be designed for the production of other recycling products. Further, the switching can be accomplished fully automatically by the process controller, also in the region of the material switch at the vacuum reactor, with two controllable outlets of the vacuum reactor being optionally provided.
Claims (19)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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DE201110005568 DE102011005568A1 (en) | 2011-03-15 | 2011-03-15 | Plant and process for recycling plastics, preferably PET |
DE102011005568 | 2011-03-15 | ||
DE102011005568.1 | 2011-03-15 |
Publications (2)
Publication Number | Publication Date |
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US20120238650A1 true US20120238650A1 (en) | 2012-09-20 |
US9162374B2 US9162374B2 (en) | 2015-10-20 |
Family
ID=45655620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US13/419,611 Expired - Fee Related US9162374B2 (en) | 2011-03-15 | 2012-03-14 | Plant and method for the recycling of plastics, preferably pet |
Country Status (8)
Country | Link |
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US (1) | US9162374B2 (en) |
EP (1) | EP2500164A1 (en) |
CN (1) | CN102672850A (en) |
BR (1) | BR102012005705A2 (en) |
CA (1) | CA2771285A1 (en) |
DE (1) | DE102011005568A1 (en) |
IN (1) | IN2012DE00695A (en) |
MX (1) | MX344609B (en) |
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US10391675B2 (en) | 2016-04-22 | 2019-08-27 | Millco Product Solutions Llc | Convertible recycling apparatus for synthetic resin materials |
CN112873625A (en) * | 2021-01-08 | 2021-06-01 | 南丰县乾泰再生资源回收利用有限公司 | Extrusion forming and recycling machine for waste polyester films |
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DE102013201116A1 (en) * | 2013-01-24 | 2014-07-24 | Krones Ag | Energy management for PET recycling plants |
US11555509B2 (en) | 2021-03-02 | 2023-01-17 | Energy Recovery, Inc. | Motorized pressure exchanger with a low-pressure centerbore |
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US10391675B2 (en) | 2016-04-22 | 2019-08-27 | Millco Product Solutions Llc | Convertible recycling apparatus for synthetic resin materials |
CN112873625A (en) * | 2021-01-08 | 2021-06-01 | 南丰县乾泰再生资源回收利用有限公司 | Extrusion forming and recycling machine for waste polyester films |
Also Published As
Publication number | Publication date |
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US9162374B2 (en) | 2015-10-20 |
IN2012DE00695A (en) | 2015-08-21 |
MX344609B (en) | 2016-12-20 |
MX2012003077A (en) | 2012-09-14 |
BR102012005705A2 (en) | 2014-02-04 |
CA2771285A1 (en) | 2012-09-15 |
CN102672850A (en) | 2012-09-19 |
DE102011005568A1 (en) | 2012-09-20 |
EP2500164A1 (en) | 2012-09-19 |
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